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Finding the Fourth Proportional to 611,764.12, 843,894.43 and 568,465.30

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Solution

The fourth proportional to 611,764.12, 843,894.43 and 568,465.30 is: 784,166.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,764.12 : 843,894.43 = 568,465.30 : x
  2. Step 2: Convert to fraction form
    611,764.12/843,894.43 = 568,465.30/x
  3. Step 3: Cross multiply
    611,764.12x = 843,894.43 × 568,465.30
  4. Step 4: Simplify right side
    611,764.12x = 479,724,699,951.98
  5. Step 5: Solve for x
    x = 479,724,699,951.98/611,764.12
  6. Step 6: Final answer
    x = 784,166.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.